Patents by Inventor Chul-Soon MOON

Chul-Soon MOON has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • High-viscosity biodegradable aliphatic-aromatic polyester copolymer having excellent hydrolysis resistance and method of preparing the same
    Patent number: 11987667
    Abstract: Provided are a biodegradable aliphatic-aromatic polyester copolymer having excellent hydrolysis resistance and high viscosity which has a carboxyl end group (CEG) content of 15 mg KOH/g or less, a ratio (Mz/Mn) of a z-average molecular weight (Mz) to a number average molecular weight (Mn) of 3 to 15, and a melt index (MI) of 5 g/10 min or less as measured under conditions of a temperature of 190° C. and a load of 2.16 kg in accordance with ASTM D 1238. A method of preparing a biodegradable aliphatic-aromatic polyester copolymer is provided, including adding a chain extender and an anti-hydrolysis agent to an aliphatic-aromatic polyester pre-copolymer over time, whereby a significant viscosity rise and improvement of hydrolysis resistance may be implemented simultaneously.
    Type: Grant
    Filed: August 11, 2023
    Date of Patent: May 21, 2024
    Assignees: SK Innovation Co., Ltd., SK Geo Centric Co., Ltd.
    Inventors: Do Young Kim, Hyun Sik Yang, Yu Hyun Kim, Ki Yup Kim, Joo Hyun Nam, Chul Soon Moon, Ji Hae Park, Sung Won Lee, Jun Haeng Lee, Ho Seung Lee
  • Composition for making hard coating layer
    Patent number: 9676960
    Abstract: The present invention relates to a composition for forming a hard coating layer, which may form a hard coating layer having significantly improved hardness as well as excellent flexibility such that curling is minimized.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: June 13, 2017
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Won-Yeob Kim, Chul-Soon Moon, Hye-Jin Kim, Ho-Chul Yoon, Jae-Eun Lee, Jong-Nam Ahn, Youngjune Park
  • COMPOSITION FOR MAKING HARD COATING LAYER
    Publication number: 20160046830
    Abstract: The present invention relates to a composition for forming a hard coating layer, which may form a hard coating layer having significantly improved hardness as well as excellent flexibility such that curling is minimized.
    Type: Application
    Filed: August 12, 2015
    Publication date: February 18, 2016
    Inventors: Won-Yeob KIM, Chul-Soon MOON, Hye-Jin KIM, Ho-Chul YOON, Jae-Eun LEE, Jong-Nam AHN, Young-June PARK